Nodular Mucinosis of the Breast
Supplemental Studies
Immunohistology
| Keratin | Negative |
| EMA | Negative |
| S100 | Variable |
| Smooth muscle actin | Variable |
| Synaptophysin | Negative |
| Chromogranin | Negative |
| MIB1 | <1% |
Histochemical stains
Myxoid tissue staining:Alcian Blue |
Positive |
Hale Colloidal Iron |
Positive |
Mucicarmine |
Faint |
PAS |
Negative |
